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Citroen Berlingo Key Fob Troubleshooting
Citroen Berlingo Multispace fills a niche in the market for people carriers. Its sliding rear door allows it to be easily inserted into parking bays, and its robust cabin can withstand more abuse than the majority of upmarket competitors.
However, if your device was exposed to soapy or salt water, it may not be working again, even after a new battery and changing the program. The internal chip can be damaged due to exposure to water.
Water Damage
Shake your key fob to drain as much water as you can. Then lay it with the button side facing up and leave it to drain for a few minutes as you wipe the inside with a cloth. This will stop any condensation from causing damage to the electronic chip.
If the warning light on the dashboard that appears like a car with an engraved key symbol appears on your Mk 2 or Mk 3 Citroen Berlingo then this could be a sign of an immobilizer malfunction. This is a security element in the vehicle to prevent thieves from hotwiring it. If this is the case then you should see an Citroen dealer or a qualified mechanic in order to resolve the issue.
An unending engine warning light could mean that the steering system with electric power is in trouble. If this is the case then you should stop the car and make sure that the pressure in the oil is in good order and that the temperature isn't overly high prior to resuming it. If the issue persists then you must visit a Citroen dealership or a qualified mechanic to resolve the issue.
Dead Battery
The most common cause of the key fob being inoperative within your Berlingo is the battery in the coin is dead. The button cell battery in the key is easy to replace, however it is important to ensure that you use the correct voltage size and type of battery. A non-compatible battery can damage the circuit board. A dead coin battery may also disable the anti-theft system. This is a security measure that prevents the engine from starting without a physical key.
If the key fob still not responding to the lock button after replacing the battery, it could be an issue with the receiver module, which isn't communicating with other modules in your vehicle. This can be detected using an OBDII scan tool.
If the key fob still is not responding, you could try reprogramming it. To do this, follow the directions in your owner’s manual. It should work as expected once it is updated.
Troubleshooting
Citroen Berlingo owners are generally happy with the vehicle's reliability. Like all vehicles, faults can occur. A key fob that is dead is one of the most frequently encountered issues. This is a simple problem to diagnose and can easily be fixed within a matter of minutes. Other problems that can arise include a worn-out button or button, water damage to the electronic chip, signal interference or a remote keyless system receiver module that has developed an issue.

It is important to realize that not all keyfob battery types are the same. Some batteries are made from inferior materials that can damage your remote, or other electronics. When replacing the battery, only use a battery that is of the same type and voltage as the original. Make sure that the new battery is inserted correctly. Ensure the positive (+) side of the battery faces upwards when it is placed in the slot for the battery.
If you notice a warning light on the dashboard of your car which appears like a triangle with an exclamation mark, it means that the car is detecting an issue with its electronic power-assisted steering. If this warning light comes on when you drive and you notice it, we suggest that you seek out a qualified mechanic at a Citroen Berlingo dealership (incl Multispace).
Radio Interference
If your key fob has stopped working all of a sudden, it could be a result of radio interference. This is a common problem caused by devices that use the same frequency as your remote control. For instance, wireless security systems, as well as aftermarket LED lights can interfere with the RF signals. Consider moving these devices to another room if you have them in your home.
In addition to devices that use the same frequency, there are also environmental factors that could interfere with a car's key fob. For citroen xsara picasso key fob The Keylab , metal objects can interfere with the signal's strength. Weather conditions that are rainy can cause the antenna of the fob to bend, which can result in weaker signals. In some instances even if the fob is located close to the vehicle it might not respond to radio signals.
To make sure that your key fob's health is good and functioning properly, test the battery. It must be in good health and the contacts must be free of corrosion. A damaged connection is the main reason why a keyfob does not respond to radio signals from the vehicle. A drained battery may cause the fob to malfunction. If you replace the battery, but the issue persists, it's possible that the antenna is not functioning properly. A professional locksmith will inspect the key fob and make necessary repairs.